Dust-collector.



no. 654,997. Patented July 3||9oo.

- L. c. mevenor.

DUST COLLEGTUB.

(Application led Feb. 28, 1900.)

(No Model.) 2 Sheets-Sheet l.

w/TNESSES'.'

w: mums Pneus co., wmoumo, wAsnwsToN, u. c.

No. 654,997. Patented luly 3|, |900. L. c. mevr-:non

DUST CDLLECTOR.

(Application Sled Feb. 23, 1900.) (No Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT FFIC.

LOUIS CONRAD 'MnYEI-iorr, oF EvAIIsvILLE, ILLINOIS;

'ou'seooLLEo-roa.

SPECIFICATION foraging partei Letters yPatent no. aegee?, dated my' 31, 1906. Application filed February 23, 19(150 Serial No. 6,243. `(Noz model.

To all whom it may cameras' l OTT, a citizen of the United States, and a resident of Evansville, in the county of Randolph and State of Illinois, have invented a new and Improved Dust-Collector, of which the following is a full, clear, and exact description.-

The object of the invention is to provide a new and improved dust-collector more especially designed for use in Hour-.mills and arranged to provide a large dust-collecting surface and to insure a constant cleaning of the ltering-cloth and removal of thedustfrom the dust-filtering compartments withoutdanger of dust-laden air passing into the compartments during the discharge of the dust into the conveyer.

The invention consists of novel features and parts and combinations of the same, as will'be fully described hereinafter and then pointed out in the claims. l

A practical embodiment of the invention is represented in the accompanyingdrawings, forming a part of this specification, in which similar characters of reference indicate cor` responding parts in all the views.

Figure 1 is a longitudinal 'sectional elevation of the improvement on the line 1 1 in Fig. 2. Fig. 2 is a transverse section of thef rollers B B2 are turned to cause the drum to rotate in the direction of the arrow a. On

the drum C, between the headsC Cgare arf` ranged a plurality of longitudinally-extending filtering-cloth compartment-s D, arranged to gradually collapse and to suddenly expand, as hereinafter more fully described, for the removal of the dust carried by the dust-laden air which passes into the drum C through a dust-flue E. Each of the filtering-cloth com partments D is provided with a shell of filteringcloth D', each shell being open. at the inner end, strips D2, of wood or other material, securing the cloth to the drum around a longitudinally-extending opening C3, formed in the peripheral surface of the` drum C to esl tablish communication between the interior of the drum and the interior of the compart-y ment. The cloth is stretched at its ends over transversely-extending bars D5, connected witheach other by longitudinal rods D4, and each of said bars D3 is provided with a longitudinal barD5, extending outwardly through the end of the cloth to pass through radial slots C4, formed in the heads C C2 of the drum O. The bars D5 are pressed outward by springs F, coiled around rods F', held in recesses formed in the heads C C2, so that the cloth of the compartments is normally held in a stretched position over the bars D3 until the bars D5 are pushed inward against the tension of the springs F by ixed cams G, se; `cured on the frame A at the ends thereof, as will be readily understood 4by reference' to Fig. 3V. When the drum C rotates in the di; .rection of the arrow a', then the bars D5, when nearing an vuppermost position, come in contact with the cams Gr, and are thus pressed in# ward in the radial slots C4 to cause the bars `D3 to move in a like direction, so that the cloth D' becomes slack, and consequently the oompartmentD', while moving into an uppermost position, collapses until the bars D5 suddenly .drop OR the cams G, and the springs F now force the bars D5 outward to again cause the bars D3 to Istretch the cloth, and thereby jerk the same and cause the adhering dust to become loose and drop inside of the compartment through the opening O3 down into a conveyer H of any approved construction and extending longitudinally through the drum C.' The conveyer H, as shown, is provided with a conveyer-casing H', supported at the .ends on screw-rods H2, adjustably held on the lmain frame, and one end of said casing H is provided with a discharge-spout I for carrying OE the dust moved tothe entrance of the spout by the conveyer-screw H3, extending in the casing H and secured o n a shaft H5, journaled in the ends of the'casing.A `One end of the shaft H1 carries 'a pulley H5, "over which passes a belt J, also passing over pulleys B3 on the shafts B. The other end of the shaft H4 carries a pulley H5, connected by belt with 4other machinery for imparting a rotary motion to the shaft H4 and the conveyer-screwA H5, and the rotary motion of the shaft is IOD transmitted by the pulleys'pH5 and Bsyand the belt Ito the shafts B, so that the 'rollers Bi B2 thereof rotate the drum 'Cin the direction of the arrow ct', as previously mentioned.

In order to prevent dust-laden air "from passing from the drum C into a compartment D at the time the latterfis collapsing, itis necessary to provide, the inside of the drum C with longitudinally extending spaced brushes K, adapted to engage the `segmental top H7 of the conveyer-casing (see Fig. 2).1.tA the time the brushes passiinto an uppermost position. The brushes `are lspaced on opposite sides of an opening "Gigso 'that when a" compartment D passes into an uppermost po-- sition then the corresponding set of brushes Kis in contact with the top H7, and vconsequentlythe interior of the drum is cut 0H at this `point from the interior of the compartment'to prevent dust-laden air from Vpassing into `the Vcompartment during the time the drum collapses and is again suddenly eX panded, as 4previously explained.

As the conveyer extends eccentrically through the drum C, it is necessary to pack the ends of the .heads C .C2 on the ends'A o-f the casing, and for this purpose suit-able packingfrings L areemployed, as plainly indicated in Iig.l l. The .upper portions of the ends A' are preferably removable, so as to-permit of l obtaining convenient access to the interiorof the drum for examining .and repairing the brushes orother parts of the device.

i Fromithe foregoing it is evident that when the machine is in operation the fdust-l'adenj air passing into the drum .C can -readily-passf through the open-ings vCB Vinto thea-several expanded filtering-'cloth compartments D, ,soL that 'the dustcarried by the air is retained-by the filtering-cloth Di, while the air passes through the pores` of the cloth to the Aoutside y of v.thecompartments.into the room in which Y the device isilocated As the drum C revolvesv the compartments are carried' upward Vto be iinallyl'cut Volat the openings C3 from "the, interior ofthe drum by the adjacent brushes K, passingupon the top H7 of the conveyers, casing H.. During this movementinto a final., uppermostv .posit-ion the compartments are collapsed by the bars D5 engaging the cams G,.as previously explained, and are finally, quickly expanded bythe action of the springs; F, fso that the dust-adhering to theinside of the lclothisv .jerked off the frame and dropsf down thro-ugh` the-openings C3 int-o the cen-v` veyer-casing H., to be moved longitudinally therein bylthe'conveyer-screw H3 -to the spout I, whichcarries the dust to one side of the machine. p y

'The machine is simple and Ydurable -in construction., vis notliable to get out *of order, andlinsures av constant cleaning of the AclothA and a removal of the dust from the dustgathering compartments,as above explained.

Having thusiully described 4my invention, I I `claim asnewandfdesi-re tosecureby Letters Patent; A

y v.1. A dust-collector, comprising a r'evoluble drum having slotted and recessed heads and longitudinal openings in its periphery becompar'tfnents secured with their inner, open ends on the peripheral surface of said drum, the openimgs of a compartment leading to an opening in said periphery, stretching-bars for the cloth-cfa compartment, and having eX- tensions mounted to slide in the radial slots in .the heads of the drum, springs in the recesses of .theheads ofthe drum and pressing on said Aextensions to force Vthem outward, and xed cams-fadaptedtoengage the said extensions, ltormove the latter gradually inward against compartment,as set Aforth. Y

12. In adam-"collector, thecombi-nati'omwit-h afdrumhavin g longitudinal open-ingsfand provided w-ith recessed and slotted4 heads, said clothcompartments arranged lon thejperipher y of the drum, 'each compartment extending longi-tudinallyo-f lthedrumjove-r au openi ing -Ythereo-f, vba-rs projectingv from opposite ends lof lthecompartments-and! working-in the slots of the heads of thedrum, ,rods secured in the recesses of the Aheadsand projecting through the bars, springs-on said rods and bearing against the bars -oft-he v`cempart ments, and xed cams engaging .the ends of the bars projecting through the fheadsasthe for the gpurpose 'setdrum is revolved, fas and forth. n p p 3. Adustvcollector,comprisingadrnmhaving longitudinal openings andprovidedrwith heads Yof lgreater diameter than" the body Aof the drum, said :heads lbeing slotted and frethe drum, each compartment extending longitudinally 'of the v4'drum over lfan opening outward, fixed lcams for engaging theendsof having an opening -in its top, fa screw -conthe top of the -conveyer-casingand the drum, substantiallyfas herein-shown-and described.

l 4. A'dust-collector,comprisin-g.adrumhavheads of greater diameter A than `the .body of of thedr-um over an-openingthereot5 stretcher- =bars karranged transversely'at the ends-ofthe 2compartments and connected rb;y"1*od.s -with tween the heads, a plurality of filtering-cloth the tension ofA .said-springsand collapse-the heads being of greater A diameter thanV the body of the drum, o'f-a plurality of vfiltering-" cessed, a plurality-of filtering-cloth compart-` ments arranged onthe peripheral sur-face ofA veyer in said casin1g,and brushesfbetween ling longitudinal openings and provided'with,

IIO

thereof, rods projecting Vfrom'fthee'n'ds'of the, compartments and 'extending throughthe- Aslots of the heads, -springsarra-nged in the.. recesses of the heads and `forcing the rods the ldr-um, Asaid @heads being slottedj:and ref cessedya plurality of filtering-cloth 'com-part I lmentsarranged on the peripheryof-thedrujm,

Eeach compartment "extendin g Vlengitud-inally j each-other,barsprojectingtrom the'stretchen; bars beyond the ends-of thecom-partmentsa'nd iextending throughtheslotsfof the drumhcads, springs in the recesses 'of the drunkV heads and pressing said bars outward, a con In testimony whereof I have signed my veyer-casing in the drum and having an openname to this specification 1n the presence of ing in its top, a screw eonveyer in the castwo subscribing Witnesses.

ing, and brushes secured to the nnerfaee of LOUIS CONRAD MEYEROTT. 5 the drum, one at each side of each opening Witnesses: Y

Jhereof, substantially as herein shown and JOHN J. DAHLEM,

described. PHILIP ROTHMEIER. 

